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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Jakub Jermar |
2 | * Copyright (c) 2009 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup genarch |
29 | /** @addtogroup genarch |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** |
32 | /** |
33 | * @file |
33 | * @file |
34 | * @brief Headers for Zilog 8530 serial controller. |
34 | * @brief Headers for Zilog 8530 serial controller. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #ifndef KERN_Z8530_H_ |
37 | #ifndef KERN_Z8530_H_ |
38 | #define KERN_Z8530_H_ |
38 | #define KERN_Z8530_H_ |
39 | 39 | ||
40 | #include <ddi/irq.h> |
40 | #include <ddi/irq.h> |
41 | #include <arch/types.h> |
41 | #include <arch/types.h> |
42 | #include <console/chardev.h> |
42 | #include <console/chardev.h> |
43 | 43 | ||
44 | #define WR0 0 |
44 | #define WR0 0 |
45 | #define WR1 1 |
45 | #define WR1 1 |
46 | #define WR2 2 |
46 | #define WR2 2 |
47 | #define WR3 3 |
47 | #define WR3 3 |
48 | #define WR4 4 |
48 | #define WR4 4 |
49 | #define WR5 5 |
49 | #define WR5 5 |
50 | #define WR6 6 |
50 | #define WR6 6 |
51 | #define WR7 7 |
51 | #define WR7 7 |
52 | #define WR8 8 |
52 | #define WR8 8 |
53 | #define WR9 9 |
53 | #define WR9 9 |
54 | #define WR10 10 |
54 | #define WR10 10 |
55 | #define WR11 11 |
55 | #define WR11 11 |
56 | #define WR12 12 |
56 | #define WR12 12 |
57 | #define WR13 13 |
57 | #define WR13 13 |
58 | #define WR14 14 |
58 | #define WR14 14 |
59 | #define WR15 15 |
59 | #define WR15 15 |
60 | 60 | ||
61 | #define RR0 0 |
61 | #define RR0 0 |
62 | #define RR1 1 |
62 | #define RR1 1 |
63 | #define RR2 2 |
63 | #define RR2 2 |
64 | #define RR3 3 |
64 | #define RR3 3 |
65 | #define RR8 8 |
65 | #define RR8 8 |
66 | #define RR10 10 |
66 | #define RR10 10 |
67 | #define RR12 12 |
67 | #define RR12 12 |
68 | #define RR13 13 |
68 | #define RR13 13 |
69 | #define RR14 14 |
69 | #define RR14 14 |
70 | #define RR15 15 |
70 | #define RR15 15 |
71 | 71 | ||
72 | /** Reset pending TX interrupt. */ |
72 | /** Reset pending TX interrupt. */ |
73 | #define WR0_TX_IP_RST (0x5 << 3) |
73 | #define WR0_TX_IP_RST (0x5 << 3) |
74 | #define WR0_ERR_RST (0x6 << 3) |
74 | #define WR0_ERR_RST (0x6 << 3) |
75 | 75 | ||
76 | /** Receive Interrupts Disabled. */ |
76 | /** Receive Interrupts Disabled. */ |
77 | #define WR1_RID (0x0 << 3) |
77 | #define WR1_RID (0x0 << 3) |
78 | /** Receive Interrupt on First Character or Special Condition. */ |
78 | /** Receive Interrupt on First Character or Special Condition. */ |
79 | #define WR1_RIFCSC (0x1 << 3) |
79 | #define WR1_RIFCSC (0x1 << 3) |
80 | /** Interrupt on All Receive Characters or Special Conditions. */ |
80 | /** Interrupt on All Receive Characters or Special Conditions. */ |
81 | #define WR1_IARCSC (0x2 << 3) |
81 | #define WR1_IARCSC (0x2 << 3) |
82 | /** Receive Interrupt on Special Condition. */ |
82 | /** Receive Interrupt on Special Condition. */ |
83 | #define WR1_RISC (0x3 << 3) |
83 | #define WR1_RISC (0x3 << 3) |
84 | /** Parity Is Special Condition. */ |
84 | /** Parity Is Special Condition. */ |
85 | #define WR1_PISC (0x1 << 2) |
85 | #define WR1_PISC (0x1 << 2) |
86 | 86 | ||
87 | /** Rx Enable. */ |
87 | /** Rx Enable. */ |
88 | #define WR3_RX_ENABLE (0x1 << 0) |
88 | #define WR3_RX_ENABLE (0x1 << 0) |
89 | /** 8-bits per character. */ |
89 | /** 8-bits per character. */ |
90 | #define WR3_RX8BITSCH (0x3 << 6) |
90 | #define WR3_RX8BITSCH (0x3 << 6) |
91 | 91 | ||
92 | /** Master Interrupt Enable. */ |
92 | /** Master Interrupt Enable. */ |
93 | #define WR9_MIE (0x1 << 3) |
93 | #define WR9_MIE (0x1 << 3) |
94 | 94 | ||
95 | /** Receive Character Available. */ |
95 | /** Receive Character Available. */ |
96 | #define RR0_RCA (0x1 << 0) |
96 | #define RR0_RCA (0x1 << 0) |
97 | 97 | ||
98 | /** z8530's registers. */ |
98 | /** z8530's registers. */ |
99 | typedef struct { |
99 | typedef struct { |
100 | union { |
100 | union { |
101 | ioport8_t ctl_b; |
101 | ioport8_t ctl_b; |
102 | ioport8_t status_b; |
102 | ioport8_t status_b; |
103 | } __attribute__ ((packed)); |
103 | } __attribute__ ((packed)); |
104 | uint8_t pad1; |
104 | uint8_t pad1; |
105 | ioport8_t data_b; |
105 | ioport8_t data_b; |
106 | uint8_t pad2; |
106 | uint8_t pad2; |
107 | union { |
107 | union { |
108 | ioport8_t ctl_a; |
108 | ioport8_t ctl_a; |
109 | ioport8_t status_a; |
109 | ioport8_t status_a; |
110 | } __attribute__ ((packed)); |
110 | } __attribute__ ((packed)); |
111 | uint8_t pad3; |
111 | uint8_t pad3; |
112 | ioport8_t data_a; |
112 | ioport8_t data_a; |
113 | } __attribute__ ((packed)) z8530_t; |
113 | } __attribute__ ((packed)) z8530_t; |
114 | 114 | ||
115 | /** Structure representing the z8530 device. */ |
115 | /** Structure representing the z8530 device. */ |
116 | typedef struct { |
116 | typedef struct { |
117 | irq_t irq; |
117 | irq_t irq; |
118 | z8530_t *z8530; |
118 | z8530_t *z8530; |
119 | indev_t kbrdin; |
119 | indev_t *kbrdin; |
120 | } z8530_instance_t; |
120 | } z8530_instance_t; |
121 | 121 | ||
122 | extern indev_t *z8530_init(z8530_t *, inr_t, cir_t, void *); |
122 | extern z8530_instance_t *z8530_init(z8530_t *, inr_t, cir_t, void *); |
- | 123 | extern void z8530_wire(z8530_instance_t *, indev_t *); |
|
123 | 124 | ||
124 | #endif |
125 | #endif |
125 | 126 | ||
126 | /** @} |
127 | /** @} |
127 | */ |
128 | */ |
128 | 129 |